Fastening device for bracelets and wristbands



Dec. 20, 1949 M. HELLER 2,491,977

FASTENING DEVICE FOR BRACELETS AND WRISTBANDS Filed July 21, 1947 .Miriamgeffer I Patented Dec. 20, 1949 UNITED STATES PATENT' GF FICE FAS'IENING DEVICE FORBRACELETS AND WRISTBANDS MiriamHeller, Brooklyn, N. Y;

Application J ulyA 21, 1947, Serial No. 762,290v

3 claims. 1

The present invention relates to fastening devices for bracelets and wristbands.

Among the objects of the invention isthe provision of an adjustable and readily movable fastening device for usewhere compactness and ornamental appearance are desirable.

A further object of the invention is to provide such` a fastening device which` may be actuated to permit removal or application` of the. bracelet by the` use of. a singlefhand and` eliminates the use of the nger nails.

Another object of the invention is to provide a fastening device of this character which is adjustable in length. This adjustment permits all bracelets or wristbands to. be of fixed length, the adjustment for Various sizes being provided in the fastening device.

It is another object of the invention to provide an adjustable fastening device of extreme simplicity and which may accordingly be manufactured at a minimum of cost.

For further comprehension. of the invention, and of the objects and advantages thereon referencev will be had to the following description l and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 shows a perspective view of a partially closed fastening device embodying the invention.

Fig. 2 shows a perspective View of the embodiment of Fig. 1, disassembled to illustrate certain structural details.

Fig. 3 is a sectional plan view taken along the line 3--3 of Fig. 1, looking in the direction of the arrows.

Fig. 4 is a perspective view of the embodiment of Fig. 1 in the closed position.

Fig. 5 is a bottom view of the device shown in Fig. 1.

Fig. 6 is a View in sectional elevation taken along the line 6-6 of Fig. 4, looking in the direction of the arrows.

Fig. 7 is a fragmentary plan sectional view of a modied form of the invention.

Referring to Fig. 1, the fastening device comprises an outer or cover member I I having a sharply curved portion I2 which is shaped to provide an aperture to secure a link of chain bracelet 2; I3. VHingedly secured to cover member II` is a compression member I5. The hinge is shown at I4' as. consisting of two small projections on compression member I5` which engage holes in cover member II.

An. inner adjustment member It is shown provided' with a lug I1", and a longitudinal slot I8 having an inwardly projecting hook 2t). being hingedly secured to compression member i5 at i9. The hinge arrangement is similar to that shown at I4". An outer adjustment member 20 isshown formed from a single piece of nat. material and is provided with an internal notch 25 for engagement with the inwardly projecting hook 26 of the inner adjustment member I6, and a series of spaced lateral apertures 2i. of dimensions adapted for engagement With lug` IT of internal adjustment member i6. Member 2t isopen. at. one end as indicated at 22 to'receive member i6, the. op.- posite end of member 20 being sharply curved to` provide a closed hook portion 23 adapted to receive an end link of chain I'3.

When the fastening device. is closed as shown in Fig. 4,.an.opening or cut out I I in cover meme ber I`I provides clearance for projecting lug I"l and inwardly bent portions 24 of cover member I I grip the sides of external adjustment member 20 to retain the device in the closed position.

To open the fastening device a slight pressure inwardly of member Il which is provided with a sharp angle which will permit snapping out from member 2| and thus permitting member 20 to release from member I5 by pulling to an outward direction Where member 2i) will be disengaged from member 24 as shown in Fig. 4 or 5 and thus permitting the fastening device to be unfolded as shown in Fig. 1. The fastening device may also be opened when an upward pull is exerted on cover member II which disengages the inwardly extending portions 24 from lateral engagement with outer adjustment member 2i), thus permitting the fastening device to be unfolded providing sulficient additional length so that the bracelet may be removed from the wrist.

The length of the device may be adjusted by pressing lug Il inwardly which will permit inner member i6 to be moved so that lug il will engage any desired one of the several apertures 2i! of outer member 2t. A resilient spring action urging lug Il outwardly is provided by the longitudinal slot I8 in inner member I6. Lug 25 provides a catch for hook 2B to prevent inner member I6 from becoming completely disengaged from outer member 2|] unless desired.

YLug vII is constructed with a sharp angle that facilitates member 20 to be easily pushed into its contracted position and thus interlocks with member 2li to lock the clasp securely and to any Wrist adjustment.

Adjustment members I6 and 20 may be made symmetrical as indicated in Fig. "I by providing an additional lug Il adapted for engagement with additional apertures 2| It will be seen that the fastening devices consist in their entirety of only four parts, each of which is adapted for quantity production by means of blanking and forming dies for example, v

if the device is constructed of metal. Also that the members I I, I5, I9 and 20, may be preferably curved to conform with the Wrist of the wearer.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as dened in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. In a fastening device of the class described, a cover member, a compression member hingedly secured to the cover member, an outer adjustment member having a plurality of lateral apertures therein, an inner adjustment member hingedly secured to the compression member and shaped for engagement with the outer adjustment member and provided with a longitudinal slot to form tWo resilient arms, a lug with a sharp angle on one of the arms disposed for yielding engagement with any one of the plurality of apertures in the outer adjustment members, and an inwardly projecting hook on the other arm of the longitudinal slot for retaining engagement with an internal notch in the outer adjustment member.

2. In a fastening device of the class described, a cover member, a compression member, hinge means securing an end portion of the cover member to the compression member, an outer adjustment member having a plurality of lateral apertures therein, an inner adjustment member shaped for engagement with the outer adjustment member and having a longitudinal slot therein to provide two resilient arms, a lug with a sharp angle on one of the arms disposed for yielding engagement with any one of the apex'- tures in the outer adjustment member, an inwardly projecting hook on the other arm of the longitudinal slot for retaining engagement with an internal notch in the outer adjustment member, and further hinge means securing an end portion of the inner adjustment member to an end portion of the compression member opposite to the rst named end portion.

3. In a fastening device of the class described, a cover member, a compression member, hinge means securing an end portion of the cover member to the compression member, an outer adjustment member having a plurality of lateral apertures therein, an inner adjustment member shaped for engagement with the outer adjustment member and having a longitudinal slot therein to provide two resilient arms, a lug With a sharp angle on one of the arms disposed for yielding engagement with any one of the apertures in the outer adjustment member, an inwardly projecting hook on the other arm of the longitudinal slot for retaining engagement with an internal notch in the outer adjustment member, further hinge means securing an end portion of the inner adjustment member to an end portion of the compression member opposite to the rst named end portion, each hinge means comprising small projections on one of the members adapted for engagement with corresponding holes in the other member.

MIRIAM HELLER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,881,918 Patten Oct. 11, 1932 1,920,739 Bernard Aug. 1, 1933 2,007,537 Kraemer July 9, 1935 2,097,055 Bender Oct. 26, 1937 2,363,590 Holmquist Nov. 28, 1944 

